The Tor Browser: widget/cocoa/ComplexTextInputPanel.mm@b8a032363ba2 (annotated)

widget/cocoa/ComplexTextInputPanel.mm@b8a032363ba2 (annotated)

widget/cocoa/ComplexTextInputPanel.mm

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /*
  * Copyright (C) 2009 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Modified by Josh Aas of Mozilla Corporation.
  */
 #import "ComplexTextInputPanel.h"
 #include <algorithm>
 #include "mozilla/Preferences.h"
 #include "nsChildView.h"
 #include "nsCocoaFeatures.h"
 using namespace mozilla;
 #define kInputWindowHeight 20
 @implementation ComplexTextInputPanel
 + (ComplexTextInputPanel*)sharedComplexTextInputPanel
 {
   static ComplexTextInputPanel *sComplexTextInputPanel;
   if (!sComplexTextInputPanel)
     sComplexTextInputPanel = [[ComplexTextInputPanel alloc] init];
   return sComplexTextInputPanel;
 }
 - (id)init
 {
   // In the original Apple code the style mask is given by a function which is not open source.
   // What could possibly be worth hiding in that function, I do not know.
   // Courtesy of gdb: stylemask: 011000011111, 0x61f
   self = [super initWithContentRect:NSZeroRect styleMask:0x61f backing:NSBackingStoreBuffered defer:YES];
   if (!self)
     return nil;
   // Set the frame size.
   NSRect visibleFrame = [[NSScreen mainScreen] visibleFrame];
   NSRect frame = NSMakeRect(visibleFrame.origin.x, visibleFrame.origin.y, visibleFrame.size.width, kInputWindowHeight);
   [self setFrame:frame display:NO];
   mInputTextView = [[NSTextView alloc] initWithFrame:[self.contentView frame]];
   mInputTextView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable | NSViewMaxXMargin | NSViewMinXMargin | NSViewMaxYMargin | NSViewMinYMargin;
   NSScrollView* scrollView = [[NSScrollView alloc] initWithFrame:[self.contentView frame]];
   scrollView.documentView = mInputTextView;
   self.contentView = scrollView;
   [scrollView release];
   [self setFloatingPanel:YES];
   [[NSNotificationCenter defaultCenter] addObserver:self
                                            selector:@selector(keyboardInputSourceChanged:)
                                                name:NSTextInputContextKeyboardSelectionDidChangeNotification
                                              object:nil];
   return self;
 }
 - (void)dealloc
 {
   [[NSNotificationCenter defaultCenter] removeObserver:self];
   [mInputTextView release];
   [super dealloc];
 }
 - (void)keyboardInputSourceChanged:(NSNotification *)notification
 {
   static int8_t sDoCancel = -1;
   if (!sDoCancel || ![self inComposition]) {
     return;
   }
   if (sDoCancel < 0) {
     bool cancelComposition = false;
     static const char* kPrefName =
       "ui.plugin.cancel_composition_at_input_source_changed";
     nsresult rv = Preferences::GetBool(kPrefName, &cancelComposition);
     NS_ENSURE_SUCCESS(rv, );
     sDoCancel = cancelComposition ? 1 : 0;
   }
   if (sDoCancel) {
     [self cancelComposition];
   }
 }
 - (BOOL)interpretKeyEvent:(NSEvent*)event string:(NSString**)string
 {
   BOOL hadMarkedText = [mInputTextView hasMarkedText];
   *string = nil;
   if (![[mInputTextView inputContext] handleEvent:event])
     return NO;
   if ([mInputTextView hasMarkedText]) {
     // Don't show the input method window for dead keys
     if ([[event characters] length] > 0)
       [self orderFront:nil];
     return YES;
   } else {
     [self orderOut:nil];
     NSString *text = [[mInputTextView textStorage] string];
     if ([text length] > 0)
       *string = [[text copy] autorelease];
   }
   [mInputTextView setString:@""];
   return hadMarkedText;
 }
 - (NSTextInputContext*)inputContext
 {
   return [mInputTextView inputContext];
 }
 - (void)cancelComposition
 {
   [mInputTextView setString:@""];
   [self orderOut:nil];
 }
 - (BOOL)inComposition
 {
   return [mInputTextView hasMarkedText];
 }
 - (void)adjustTo:(NSView*)view
 {
   NSRect viewRect = [view frame];
   viewRect.origin.x = 0;
   viewRect.origin.y = 0;
   viewRect = [view convertRect:viewRect toView:nil];
   if (nsCocoaFeatures::OnLionOrLater()) {
     viewRect = [[view window] convertRectToScreen:viewRect];
   } else {
     viewRect.origin = [[view window] convertBaseToScreen:viewRect.origin];
   }
   NSRect selfRect = [self frame];
   CGFloat minWidth = static_cast<CGFloat>(
                        Preferences::GetUint("ui.plugin.panel.min-width", 500));
   NSRect rect = NSMakeRect(viewRect.origin.x,
                            viewRect.origin.y - selfRect.size.height,
                            std::max(viewRect.size.width, minWidth),
                            selfRect.size.height);
   // Adjust to screen.
   NSRect screenRect = [[NSScreen mainScreen] visibleFrame];
   if (rect.origin.x < screenRect.origin.x) {
     rect.origin.x = screenRect.origin.x;
   }
   if (rect.origin.y < screenRect.origin.y) {
     rect.origin.y = screenRect.origin.y;
   }
   CGFloat xMostOfScreen = screenRect.origin.x + screenRect.size.width;
   CGFloat yMostOfScreen = screenRect.origin.y + screenRect.size.height;
   CGFloat xMost = rect.origin.x + rect.size.width;
   CGFloat yMost = rect.origin.y + rect.size.height;
   if (xMostOfScreen < xMost) {
     rect.origin.x -= xMost - xMostOfScreen;
   }
   if (yMostOfScreen < yMost) {
     rect.origin.y -= yMost - yMostOfScreen;
   }
   [self setFrame:rect display:[self isVisible]];
 }
 @end

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widget/cocoa/ComplexTextInputPanel.mm@b8a032363ba2 (annotated)

widget/cocoa/ComplexTextInputPanel.mm